【mysql日常】Centos安装Mysql客户端

一、判断是否已安装MYSQL

which mysql
which mysqldump
输出如下内容表示未安装

[root@qbi-executor-01 mysql]# which mysql

[root@qbi-executor-01 mysql]# which mysqldump

输入如下内容表示已安装

[root@centos6 ~]# which mysql

/usr/bin/mysql
1

[root@centos6 ~]# which mysqldump

/usr/bin/mysqldump
1

二、安装mysql客户端

[root@qbi-executor-01 mysql]# yum install mysql-community-server --nogpgcheck

 [root@qbi-executor-01 mysql]# yum install mysql-community-server --nogpgcheck
Loaded plugins: fastestmirror, langpacks, releasever-adapter, update-motd
Loading mirror speeds from cached hostfile
Resolving Dependencies
--> Running transaction check
---> Package mysql-community-server.x86_64 0:5.7.38-1.el7 will be installed
--> Processing Dependency: mysql-community-common(x86-64) = 5.7.38-1.el7 for package: mysql-community-server-5.7.38-1.el7.x86_64
--> Processing Dependency: mysql-community-client(x86-64) >= 5.7.9 for package: mysql-community-server-5.7.38-1.el7.x86_64
--> Running transaction check
---> Package mysql-community-client.x86_64 0:5.7.38-1.el7 will be installed
--> Processing Dependency: mysql-community-libs(x86-64) >= 5.7.9 for package: mysql-community-client-5.7.38-1.el7.x86_64
---> Package mysql-community-common.x86_64 0:5.7.38-1.el7 will be installed
--> Running transaction check
---> Package mariadb-libs.x86_64 1:5.5.68-1.1.al7 will be obsoleted
--> Processing Dependency: libmysqlclient.so.18()(64bit) for package: 2:postfix-2.10.1-9.1.al7.x86_64
--> Processing Dependency: libmysqlclient.so.18(libmysqlclient_18)(64bit) for package: 2:postfix-2.10.1-9.1.al7.x86_64
---> Package mysql-community-libs.x86_64 0:5.7.38-1.el7 will be obsoleting
--> Running transaction check
---> Package mysql-community-libs-compat.x86_64 0:5.7.38-1.el7 will be obsoleting
--> Finished Dependency Resolution

Dependencies Resolved

================================================================================
 Package                      Arch    Version          Repository          Size
================================================================================
Installing:
 mysql-community-libs         x86_64  5.7.38-1.el7     mysql57-community  2.6 M
     replacing  mariadb-libs.x86_64 1:5.5.68-1.1.al7
 mysql-community-libs-compat  x86_64  5.7.38-1.el7     mysql57-community  1.2 M
     replacing  mariadb-libs.x86_64 1:5.5.68-1.1.al7
 mysql-community-server       x86_64  5.7.38-1.el7     mysql57-community  178 M
Installing for dependencies:
 mysql-community-client       x86_64  5.7.38-1.el7     mysql57-community   28 M
 mysql-community-common       x86_64  5.7.38-1.el7     mysql57-community  311 k

Transaction Summary
================================================================================
Install  3 Packages (+2 Dependent packages)

Total size: 209 M
Total download size: 178 M
Is this ok [y/d/N]: y
Downloading packages:
mysql-community-server-5.7.38-1.el7.x86_64.rpm             | 178 MB   00:16
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Warning: RPMDB altered outside of yum.
  Installing : mysql-community-common-5.7.38-1.el7.x86_64                   1/6
  Installing : mysql-community-libs-5.7.38-1.el7.x86_64                     2/6
  Installing : mysql-community-client-5.7.38-1.el7.x86_64                   3/6
  Installing : mysql-community-server-5.7.38-1.el7.x86_64                   4/6
  Installing : mysql-community-libs-compat-5.7.38-1.el7.x86_64              5/6
  Erasing    : 1:mariadb-libs-5.5.68-1.1.al7.x86_64                         6/6
  Verifying  : mysql-community-libs-compat-5.7.38-1.el7.x86_64              1/6
  Verifying  : mysql-community-client-5.7.38-1.el7.x86_64                   2/6
  Verifying  : mysql-community-server-5.7.38-1.el7.x86_64                   3/6
  Verifying  : mysql-community-common-5.7.38-1.el7.x86_64                   4/6
  Verifying  : mysql-community-libs-5.7.38-1.el7.x86_64                     5/6
  Verifying  : 1:mariadb-libs-5.5.68-1.1.al7.x86_64                         6/6

Installed:
  mysql-community-libs.x86_64 0:5.7.38-1.el7
  mysql-community-libs-compat.x86_64 0:5.7.38-1.el7
  mysql-community-server.x86_64 0:5.7.38-1.el7

Dependency Installed:
  mysql-community-client.x86_64 0:5.7.38-1.el7
  mysql-community-common.x86_64 0:5.7.38-1.el7

Replaced:
  mariadb-libs.x86_64 1:5.5.68-1.1.al7

Complete!
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测试

再次测试安装情况，步骤同（一、判断是否已安装MYSQL）
命令：which mysql
命令：which mysqldump